Is your vet just a regular vet or is it an animal hospital?? If it's not an actual animal hospital it might be worth a visit to one.I'm so frustrated that the vet doesn't seem to have any real idea what's wrong with her. Her symtpoms are so severe you'd think it would a fairly obvious issue. How can a trained professional be so in the dark? I'm about to get angry with them if they don't start coming up with some real possibilities.